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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ________________________________________
/ "A horrible little boy came up to me   \
| and said, `You know in your book The   |
| Martian Chronicles?' I said, `Yes?' He |
| said, `You know where you talk about   |
| Deimos rising in the East?' I said,    |
| `Yes?' He said `No.' -- So I hit him." |
|                                        |
\ -- attributed to Ray Bradbury          /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

$output = shell_exec("/usr/games/fortune | /usr/games/cowsay");
echo $output;